@article{SLC_2005-2007_54A_a6,
     author = {Christine Bessenrodt},
     title = {Algebra {Invariants} for {Finite} {Directed} {Graphs} with {Relations}},
     journal = {S\'eminaire lotharingien de combinatoire},
     year = {2005-2007},
     volume = {54A},
     url = {http://geodesic.mathdoc.fr/item/SLC_2005-2007_54A_a6/}
}